Tất cả câu hỏi
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1
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1
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739 views
biểu diễn các số hữu tỉ sau trên trục số: -3/2...
biểu diễn các số hữu tỉ sau trên trục số: -3/2 ; 1/-3 ; 1/4
Hỏi lúc: 19-05-2021 13:23
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0
vote
0
answers
281 views
Thầy ơi thầy giảng bài chậm lại đi ạ. nhanh quá...
Thầy ơi thầy giảng bài chậm lại đi ạ. nhanh quá e nghe ko kịp.
Hỏi lúc: 18-05-2021 08:36
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-1
vote
2
answers
1696 views
Câu 25. Cho dãy số tự nhiên: 1; 2; 3; 4;...
Câu 25.
Cho dãy số tự nhiên: 1; 2; 3; 4; 5; …; x.
Tìm x để số chữ số của x gấp 3 lần x.
Câu 26. Cho dãy số lẻ lên tiếp: 1; 3; 5; 7; …; x.
Tìm x để số chữ số của dãy gấp 4 lần số số hạng.
Hỏi lúc: 17-05-2021 10:56
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1
vote
1
answers
560 views
cấu trúc 12 thì trong tiếng anh là g&ig...
cấu trúc 12 thì trong tiếng anh là gì?
Hỏi lúc: 17-05-2021 09:47
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-12
vote
12
answers
706 views
để câu hỏi nào khó khó nhé
Hỏi lúc: 17-05-2021 09:43
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1
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6
answers
904 views
If you can't join my birthday party, I (be)__________ very u...
If you can't join my birthday party, I (be)__________ very upset.
Hỏi lúc: 17-05-2021 09:34
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0
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2
answers
378 views
Tại sao công thức tính diện tích hinh th...
Tại sao công thức tính diện tích hinh thoi lại bằng ( BD*AC ) : 2
Hỏi lúc: 17-05-2021 09:04
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0
vote
2
answers
314 views
Em hãy viết 1 bức thư để thổ lộ tình cảm với 1...
Em hãy viết 1 bức thư để thổ lộ tình cảm với 1 người bạn cùng lớp mà em yêu mến bằng tiếng anh
Hỏi lúc: 16-05-2021 11:14
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-5
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0
answers
470 views
cho htg abcd
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0
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0
answers
465 views
Cho a b = b c = c d = 1 2 và a + d = 108 . Tính
Hỏi lúc: 15-05-2021 18:15
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0
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3
answers
689 views
Câu 2. Tính tổng tất cả các số có...
Câu 2. Tính tổng tất cả các số có 3 chữ số chia hết cho 5.
Hỏi lúc: 15-05-2021 10:38
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0
vote
4
answers
599 views
Câu 1. Có tất cả bao nhiêu số có 3...
Câu 1. Có tất cả bao nhiêu số có 3 chữ số chia hết cho 5.
Hỏi lúc: 15-05-2021 10:19
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0
vote
0
answers
488 views
Giups em cau 1 va cau 2
Hỏi lúc: 15-05-2021 10:18
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1
vote
1
answers
787 views
Câu 1 Mã: 96642 Choose the correct optio...
Câu 1 Mã: 96642
Choose the correct options:
I ______ buy a telescope if I can still afford it.
maymightBoth A and BCâu 2 Mã: 96643
Choose the correct options:
You ______ get tired working all day in the laboratory.
maymightBoth A and BCâu 3 Mã: 96641
Choose the correct options:
______ I ask your phone number?
maymightBoth A and BCâu 4 Mã: 96639
Choose the correct options:
That _____ be true.
maymight`Both A and BCâu 5 Mã: 96640
Choose the correct options:
You ______ use any computers in this room.
maymightBoth A and BCâu 6 Mã: 96637
Choose the correct options:
The policeman says we ______ go home.
maymightBoth A and BCâu 7 Mã: 96634
Choose the correct direct speech for the given reported speech.
Mandy wanted to know what Mark had been doing in the labratory at 9 a.m the day before.
"What did you do in the labratory at 9 a.m yesterday, Mark?", Mandy asked."What were you doing in the labratory at 9 a.m yesterday, Mark?", Mandy asked."What were you doing in the labratory at 9 a.m the day before, Mark?", Mandy asked.Câu 8 Mã: 96635
Choose the correct direct speech for the given reported speech.
They asked if I would be going on another voyage the following month.
"Will you be going on another voyage this month?", they asked."Will you going on another voyage next month?", they asked."Will you be going on another voyage next month?", they asked.Câu 9 Mã: 96636
Choose the correct direct speech for the given reported speech.
She asked us if we had had any space exploration.
"Have you had any space exploration?", she asked."Have you made any space exploration?", she asked."Did you had any space exploration?", she asked.Câu 10 Mã: 96632
Choose the correct direct speech for the given reported speech.
Hoa asked if I knew how to change questions into reported speech.
"Do you know how to change questions into reported speech?", Hoa asked."Are you know how to change questions into reported speech?", Hoa asked."Did you know how to change questions into reported speech?", Hoa asked.Câu 11 Mã: 96633
Choose the correct direct speech for the given reported speech.
Our teacher asked if we understood the lesson about planets in solar system that day.
"Do you understand the lesson about planets in solar system?", our teacher asked."Do you understand the lesson about planets in solar system that day?", our teacher asked."Do you understand the lesson about planets in solar system today?", our teacher asked.Câu 12 Mã: 96631
Choose the correct direct speech for the given reported speech.
Lily asked his father how far she could travel in a spaceship.
"How far could I travel in a spaceship, dad?", Lily asked."How far can I travel in a spaceship, dad?", Lily asked."How far I could travel in a spaceship, dad?", Lily asked.Câu 13 Mã: 96629
Choose the correct direct speech for the given reported speech.
He asked me how many members there were in my trekking team.
"How many members are there in your trekking team?", he asked."How many members there are in your trekking team?", he asked."How many members were there in your trekking team?", he asked.Câu 14 Mã: 96627
96627Choose the correct direct speech for the given reported speech.
Minh asked me what the differences between Earth and Neptune were.
"What are the difference between Earth and Neptune?" Minh asked me."What are the differences between Earth and Neptune?" Minh asked me."What were the differences between Earth and Neptune?" Minh asked me.Câu 15 Mã: 96628
Choose the correct direct speech for the given reported speech.
She asked me why I hadn't phoned her 2 days before.
"Why did you phone me 2 days ago?", she asked."Why didn't you phoned me 2 days ago?", she asked."Why didn't you phone me 2 days ago?", she asked.Câu 16 Mã: 96626
Choose the correct direct speech for the given reported speech.
Khanh's mother asked if he wanted to become an astronomer.
"Do you want to become an astronomer, Khanh?", his mother asked."Did you want to become an astronomer, Khanh?", his mother asked."Are you want to become an astronomer, Khanh?", his mother asked.Câu 17 Mã: 96625
Complete the sentences with the correct forms of the verbs in brackets.
This time next week he ________to London for the meeting. (fly)
Câu 18 Mã: 96624
Complete the sentences with the correct forms of the verbs in brackets.
Andy ________ a video about science when I arrive tonight. (watch)
Câu 19 Mã: 96623
Complete the sentences with the correct forms of the verbs in brackets.
I want ________ some flowers to congratulate him on his new position. (buy)
Câu 20 Mã: 96622
Complete the sentences with the correct forms of the verbs in brackets.
Minh said he ________ an email from his cousin the day before. (receive)
Hỏi lúc: 15-05-2021 09:19
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0
vote
0
answers
515 views
cho tam giác abc có góc a = 90 độ, bd l...
cho tam giác abc có góc a = 90 độ, bd là tia phân giác của góc b. trên tia bc lấy e sao cho ba = be
a) c/m de vuông góc với be(câu này ko cần giải)
b)c/m bd là đường trtrực của ae(câu này cũng ko cần)
c) kẻ ah vuông với bc. ss eh và ec(giải nhanh giúp câu này)
cảm ơn!
Hỏi lúc: 13-05-2021 21:58
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0
vote
2
answers
289 views
câu hỏi về phân số và lũy thừa
câu hỏi về phân số và lũy thừa
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0
vote
0
answers
360 views
cho phương trình x2-mx+m-1=0 gọi x1,x2là 2 ngh...
cho phương trình x2-mx+m-1=0
gọi x1,x2là 2 nghiệm của phương trình. tim giá trị lớn nhất của biểu thức A=(-x1)2-x2
Hỏi lúc: 13-05-2021 21:03
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0
vote
1
answers
8655 views
Chứng minh rằng một tam giác có hai đường cao...
Chứng minh rằng một tam giác có hai đường cao ( xuất phát từ các đỉnh của hai góc nhọn ) bằng nhau thì tam giác đó là tam giác cân. Từ đó suy ra một tam giác có ba đường cao bằng nhau thì tam giác đó là tam giác đều.
Hỏi lúc: 13-05-2021 20:39
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0
vote
3
answers
575 views
Write a paragraph about your favourite TV programme
Write a paragraph about your favourite TV programme
Hỏi lúc: 13-05-2021 19:14
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0
vote
7
answers
599 views
Trả lời giúp mình với !
Hỏi lúc: 13-05-2021 10:38
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0
vote
2
answers
579 views
Ủa phần toán cơ bản lớp 7 , HK II ko có b&agra...
Ủa phần toán cơ bản lớp 7 , HK II ko có bài "Tính Chất Đường Cao của Tam Giác" à ?
Hỏi lúc: 12-05-2021 22:05
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1
vote
0
answers
312 views
Câu 1 Mã: 96642 Choose the correct optio...
Câu 1 Mã: 96642
Choose the correct options:
I ______ buy a telescope if I can still afford it.
maymightBoth A and BCâu 2 Mã: 96643
Choose the correct options:
You ______ get tired working all day in the laboratory.
maymightBoth A and BCâu 3 Mã: 96641
Choose the correct options:
______ I ask your phone number?
maymightBoth A and BCâu 4 Mã: 96639
Choose the correct options:
That _____ be true.
maymight`Both A and BCâu 5 Mã: 96640
Choose the correct options:
You ______ use any computers in this room.
maymightBoth A and BCâu 6 Mã: 96637
Choose the correct options:
The policeman says we ______ go home.
maymightBoth A and BCâu 7 Mã: 96634
Choose the correct direct speech for the given reported speech.
Mandy wanted to know what Mark had been doing in the labratory at 9 a.m the day before.
"What did you do in the labratory at 9 a.m yesterday, Mark?", Mandy asked."What were you doing in the labratory at 9 a.m yesterday, Mark?", Mandy asked."What were you doing in the labratory at 9 a.m the day before, Mark?", Mandy asked.Câu 8 Mã: 96635
Choose the correct direct speech for the given reported speech.
They asked if I would be going on another voyage the following month.
"Will you be going on another voyage this month?", they asked."Will you going on another voyage next month?", they asked."Will you be going on another voyage next month?", they asked.Câu 9 Mã: 96636
Choose the correct direct speech for the given reported speech.
She asked us if we had had any space exploration.
"Have you had any space exploration?", she asked."Have you made any space exploration?", she asked."Did you had any space exploration?", she asked.Câu 10 Mã: 96632
Choose the correct direct speech for the given reported speech.
Hoa asked if I knew how to change questions into reported speech.
"Do you know how to change questions into reported speech?", Hoa asked."Are you know how to change questions into reported speech?", Hoa asked."Did you know how to change questions into reported speech?", Hoa asked.Câu 11 Mã: 96633
Choose the correct direct speech for the given reported speech.
Our teacher asked if we understood the lesson about planets in solar system that day.
"Do you understand the lesson about planets in solar system?", our teacher asked."Do you understand the lesson about planets in solar system that day?", our teacher asked."Do you understand the lesson about planets in solar system today?", our teacher asked.Câu 12 Mã: 96631
Choose the correct direct speech for the given reported speech.
Lily asked his father how far she could travel in a spaceship.
"How far could I travel in a spaceship, dad?", Lily asked."How far can I travel in a spaceship, dad?", Lily asked."How far I could travel in a spaceship, dad?", Lily asked.Câu 13 Mã: 96629
Choose the correct direct speech for the given reported speech.
He asked me how many members there were in my trekking team.
"How many members are there in your trekking team?", he asked."How many members there are in your trekking team?", he asked."How many members were there in your trekking team?", he asked.Câu 14 Mã: 96627
96627Choose the correct direct speech for the given reported speech.
Minh asked me what the differences between Earth and Neptune were.
"What are the difference between Earth and Neptune?" Minh asked me."What are the differences between Earth and Neptune?" Minh asked me."What were the differences between Earth and Neptune?" Minh asked me.Câu 15 Mã: 96628
Choose the correct direct speech for the given reported speech.
She asked me why I hadn't phoned her 2 days before.
"Why did you phone me 2 days ago?", she asked."Why didn't you phoned me 2 days ago?", she asked."Why didn't you phone me 2 days ago?", she asked.Câu 16 Mã: 96626
Choose the correct direct speech for the given reported speech.
Khanh's mother asked if he wanted to become an astronomer.
"Do you want to become an astronomer, Khanh?", his mother asked."Did you want to become an astronomer, Khanh?", his mother asked."Are you want to become an astronomer, Khanh?", his mother asked.Câu 17 Mã: 96625
Complete the sentences with the correct forms of the verbs in brackets.
This time next week he ________to London for the meeting. (fly)
Câu 18 Mã: 96624
Complete the sentences with the correct forms of the verbs in brackets.
Andy ________ a video about science when I arrive tonight. (watch)
Câu 19 Mã: 96623
Complete the sentences with the correct forms of the verbs in brackets.
I want ________ some flowers to congratulate him on his new position. (buy)
Câu 20 Mã: 96622
Complete the sentences with the correct forms of the verbs in brackets.
Minh said he ________ an email from his cousin the day before. (receive)
Hỏi lúc: 12-05-2021 15:38
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0
vote
1
answers
423 views
Động cơ nào sau đây không phải là...
Động cơ nào sau đây không phải là động cơ nhiệt?
A.Động cơ của máy bay phản lực.B.Động cơ của xe máy Hon-da.C.Động cơ chạy máy phát điện của nhà máy thuỷ điện Sông Đà.D.Động cơ chạy máy phát điện của nhà máy nhiệt điện.Hỏi lúc: 12-05-2021 15:33
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0
vote
1
answers
1165 views
Hai đoàn tau đi từ A đến B mất 2 giờ 48 phút v...
Hai đoàn tau đi từ A đến B mất 2 giờ 48 phút và 4 giờ 40 phút.
a) Trong 1 giờ mỗi đoàn tàu đi được bao nhiêu phần quãng đường AB
b) Trong 1 giờ đoàn tàu thứ nhất đi nhiều hơn đoàn tàu thứ hai bao nhiêu phần quãng đường AB
c) Tính chiều dài quãng đường AB biết vận tốc đoàn tàu thứ nhất hơn vận tốc đoàn tàu thứ hai 20km/h
Hỏi lúc: 12-05-2021 09:50
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0
vote
1
answers
322 views
Tính tổng tất cả các số có 3 chữ số đượ...
Tính tổng tất cả các số có 3 chữ số được lập từ 4 chữ số: 1, 3, 5, 7 ?
